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  • #147

Closed
Open
Created Jul 31, 2019 by Emily@emily🤖

system/flex: CVE-2019-6293: recursive call stack exhaustion

Bugzilla ID 147
Alias(es) CVE-2019-6293
Reporter Max Rees (sroracle)
Assignee Max Rees (sroracle)
Reported 2019-07-31 07:09:24 -0500
Modified 2020-06-22 06:08:30 -0500
Status CONFIRMED
Version 1.0-BETA3
Hardware Adélie Linux / All
Importance --- / minor
Package(s) system/flex
URL https://nvd.nist.gov/vuln/detail/CVE-2019-6293

Description

An issue was discovered in the function mark_beginning_as_normal in
nfa.c in flex 2.6.4. There is a stack exhaustion problem caused by the
mark_beginning_as_normal function making recursive calls to itself in
certain scenarios involving lots of '*' characters. Remote attackers
could leverage this vulnerability to cause a denial-of-service.

Edited Feb 02, 2022 by Zach van Rijn
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